Aspiration (Suction)
2-4 CUSA Excel Ultrasonic Surgical Aspirator System User’s Guide
Aspiration (Suction)
A vacuum pump in the console body provides up to 660 mm (26 in.)
mercury maximum vacuum at sea level. Adjustment buttons (green
up/down arrows on black buttons at the bottom of the aspiration display
column on the control panel) allow you to increase or decrease the suction
from 10 to 100% in 10% increments.
The suction, which produces an air stream moving toward the vacuum
pump, pulls irrigation fluid, fragmented tissue, and other materials
through the distal end of the surgical tip. From the tip, the aspirated
materials pass through the manifold suction tubing into the suction
canister. From the suction canister, the air stream continues to flow
through a contamination guard that filters any remaining particulate
matter or moisture, preventing them from entering the vacuum pump.
A suction pinch valve on the front of the console opens when the system is
on and closes to stop suction in the following cases:
• When priming the irrigation system
• When pressing the Fast Flush pedal
• In Run Status, when you release the Vibration pedal. In this case, the
pinch valve closes for about one second, then re-opens.
• In Lap Mode, when you release the Vibration pedal. This suction
stoppage prevents depletion of the pneumoperitoneum.
When the System Power Switch is off, the suction pump remains off and
the suction pinch valve remains closed. A button on the front of the
suction pinch valve allows you to open the valve manually.
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